I had a 1986 V-12, ran for 8 years, redid the A/C hoses and put on Konis all around, had to replace the heater core, big job, but not real hard to do. Did a tranny rebuild, took to my local jobber and for $400 rebuilt the GM400 tranny, takes an hour out and an hour in. Traveled to Fla. set cruise at 75 and never touched the pedal (except for in town and etc.) arrived rested and ready to go again. Absolutely one of the best travelling vehicles. Tune-ups are basic and if you can do fluid changes and keep the car clean, you will be awarded with a fabulous ride. A little slow 0-60, but 60-100 is like star wars, zip! Wish I had it back.